[IronPython] [python] Re: Missing Compiler Flag

[Michael Foord]

Dino Viehland wrote:
> Ok, I closed 12908 as a dup.  If there's no info on it we can always try reverse engineering it (or see if test_codeop fails when we just ignore the flag instead of throwing - that might be the simplest thing to do).
>   

I've already tried not using the flag and it causes some odd behaviour 
(try my interactive interpreter in the browser with a function with 
several lines inside the body of the function):

http://www.voidspace.org.uk/ironpython/silverlight-console/console.html

So I don't think just ignoring it will work.

I also took a look at the C (pythonrun.c) but I don't speak C. :-(

I've asked one of the core developers for help, so we'll see what he 
comes back with. I'm also playing with the code in the DLRConsole as a 
temporary workaround - but it would be nice to get this working.

Michael
http://www.manning.com/foord


> -----Original Message-----
> From: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] On Behalf Of Michael Foord
> Sent: Friday, September 21, 2007 1:23 PM
> To: Discussion of IronPython
> Subject: Re: [IronPython] [python] Re: Missing Compiler Flag
>
> Dino Viehland wrote:
>   
>> Strangely it doesn't seem to be in the documentation for compile() either :(
>>
>> Do you know what this option does by any chance :) ?
>>
>> I've opened bug #12908
>>     
>
> Great - it can go with 12907. :-)
>
> It is  something to do with dedenting. ;-)
>
> I can't find much about it on the intarwebz. It is defined in
> pythonrun.h and seems to be used in pythonrun.c and it is involved with
> parsing which makes sense.
>
> I'll try asking around. *sigh*
>
> Michael Foord
> http://www.manning.com/foord
>
>   
>> (http://www.codeplex.com/IronPython/WorkItem/View.aspx?WorkItemId=12908) so we at least have it tracked...
>>
>> -----Original Message-----
>> From: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] On Behalf Of Michael Foord
>> Sent: Friday, September 21, 2007 12:57 PM
>> To: Discussion of IronPython
>> Subject: [IronPython] Missing Compiler Flag
>>
>> Hello all,
>>
>> There's another problem with the interactive interpreter in IronPython
>> (it affects the ability to use the code standard library module).
>>
>> The PyCF_DONT_IMPLY_DEDENT compiler flag is not recognised in IronPython.
>>
>> The flag is defined in the 'codeop' standard library module:
>>
>> PyCF_DONT_IMPLY_DEDENT = 0x200          # Matches pythonrun.h
>>
>> Attempting to use this in IronPython:
>>
>>  >>> compile('print x', 'test', 'single', 0x200, 1)
>> Traceback (most recent call last):
>>   File , line 0, in <stdin>##1
>>   File , line 0, in Compile##4
>> ValueError: unrecognized flags
>>
>> Without this flag the code module can't recognize blocks of code with
>> several indented lines. :-(
>>
>> All the best,
>>
>>
>> Michael Foord
>> http://www.manning.com/foord
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>>     
>
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